What E2 Means
E2 indicates a fault in the oven temperature sensor (RTD) used for the convection/bake functions of the speed oven — this affects convection cooking accuracy, separate from straight microwave function.
Common Causes of E2
- Failed or drifting temperature sensor
- Damaged sensor wiring
- Control board misreading the sensor signal
🔧 One Safe Check You Can Try
There isn't a safe at-home test — sensor circuit testing requires a multimeter on a de-energized unit, which is technician work.
⚠ Why You Shouldn't Go Further Than That
- Testing the sensor circuit requires the unit fully de-energized, and speed ovens combine microwave high-voltage components with this circuit in a compact space.
- The sensor sits inside a tightly built cavity; removing it without care can damage surrounding insulation and trim.
- This fault can be confused with a heating-element issue on the convection side, leading to replacing the wrong part.
- A sensor reinstalled slightly out of position continues reading inaccurately even after replacement.
- Built-in cabinetry access for this repair is a common way this warranty gets voided.